1 week post op breast reduction, is it normal to feel very achy and fatigued? Only taking 600mg ibuprofen every 6 hours.

No wound issues. My problem is that I have been taking 600 mg ibuprofen every 6 hours. I have not taken a single narcotic since the surgery. If my ibuprofen wears off, I feel horrible! My breasts are more swollen/tender and I ache all over my upper body. I also feel fatigued and mildly nauseated. No fever Is this normal at one week post op? I'm concerned that maybe I am anemic from the procedure. My hemoglobin was 12.9 pre-op and was not tested afterwards. I had 5.25 pounds removed.